Radiation protection dosimetry最新文献

Thoughts on kinetic modeling of thermoluminescence in insulators: electron delocalization in the conduction band: partial fact or mostly fiction. 关于绝缘体热释光动力学建模的思考：导电带中的电子离域：部分事实或大部分虚构。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-06 DOI: 10.1093/rpd/ncag043

Yigal S Horowitz, Leonid Oster

引用次数: 0

Factors associated with increased patient radiation dose during cerebral aneurysm embolization. 脑动脉瘤栓塞期间患者放射剂量增加的相关因素。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-06 DOI: 10.1093/rpd/ncag044

Satoru Kawauchi, Koichi Chida, Takashi Moritake, Yusuke Hamada, Wataro Tsuruta

引用次数: 0

Residual radioactivity and neutron fluence monitoring in the cyclotron using activation detectors. 利用活化探测器监测回旋加速器的残余放射性和中子通量。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncag001

Kh Haddad, A H Al Rayyes

{"title":"Residual radioactivity and neutron fluence monitoring in the cyclotron using activation detectors.","authors":"Kh Haddad, A H Al Rayyes","doi":"10.1093/rpd/ncag001","DOIUrl":"10.1093/rpd/ncag001","url":null,"abstract":"Characterization of residual radioactivity in a cyclotron is an important radiation safety issue, especially during maintenance interventions. Stainless steel and zinc-iron foils were used in this work as neutron activation foils to indicate the accumulation of residual radioactivity in the metallic parts of the cyclotron and to monitor the secondary neutron fluence. The foils were positioned near the 201Tl and 67Ga production target system. The main activation products in the foils were 51Cr, 60Co, 54Mn, and 59Fe. The variation of the generated radionuclides in the foils versus the monitoring time was obtained. Moreover, the fast neutron fluence was monitored by measuring 54Mn radioactivity in the foils. Thus, the stainless steel and zinc-iron foils have been successfully used to indicate the residual radioactivity and the neutron fluence. Highlights Characterization of residual radioactivity in a cyclotron is an important radiation safety issue;Stainless steel and zinc- iron foils were used as neutron activation foils to indicate the residual radioactivity in metallic parts of the cyclotron and to monitor the neutron fluence;The main activation products in the foils were 51Cr, 60Co, 54Mn, and 59Fe;The fast neutron fluence was monitored by 54Mn radioactivity in the foils.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"609-617"},"PeriodicalIF":0.7,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147344951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of the typical mixed radiation field induced by the beam loss in CSNS linac tunnel. CSNS直线隧道中光束损耗引起的典型混合辐射场研究。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncaf131

Ze-Qi Huang, Han-Tao Jing, Qing-Biao Wu, Qi-Fan Dong, Zhi-Ping Li, Lun Li, Nikolaos Vassilopoulos, Yu-Liang Zhang

{"title":"Study of the typical mixed radiation field induced by the beam loss in CSNS linac tunnel.","authors":"Ze-Qi Huang, Han-Tao Jing, Qing-Biao Wu, Qi-Fan Dong, Zhi-Ping Li, Lun Li, Nikolaos Vassilopoulos, Yu-Liang Zhang","doi":"10.1093/rpd/ncaf131","DOIUrl":"10.1093/rpd/ncaf131","url":null,"abstract":"In recent years, more and more electronics have been exposed to the mixed radiation field. The radiation resistance of electronics has been paid more and more attention to and the China Spallation Neutron Source (CSNS) linac tunnel provides a natural mixed radiation field. One of the radiation hotspots induced by beam loss when the CSNS linac regularly operates is the debuncher component in the beamline. The radiation level around the debuncher was measured by dose monitors and simulated by the FLUKA code simultaneously. The results of measurement and simulation are consistent, which means that the model simulated by the FLUKA code is consistent with the actual situation. The energy spectrum of the mixed radiation field at CSNS was first simulated by the FLUKA code. The mixed radiation field is composed of charged and neutral hadrons (protons and neutrons), photons, and electrons over a range of energies. This radiation field is suitable for the radiation damage effect tests of electronic components operating in the mixed radiation environment, especially for the electronic components used in the accelerator tunnel.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"562-573"},"PeriodicalIF":0.7,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146053443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultraviolet radiation dosimetry using radiochromic film for extended dose range applications and estimating eye exposure. 使用放射致色膜进行紫外辐射剂量测定，用于扩大剂量范围的应用和估计眼睛暴露。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncaf186

Raabia Hashmi, Samantha Meeker, Mike Rockwood, Kenneth Rockwood, Camryn Petersen, David J Brenner, David Welch

{"title":"Ultraviolet radiation dosimetry using radiochromic film for extended dose range applications and estimating eye exposure.","authors":"Raabia Hashmi, Samantha Meeker, Mike Rockwood, Kenneth Rockwood, Camryn Petersen, David J Brenner, David Welch","doi":"10.1093/rpd/ncaf186","DOIUrl":"10.1093/rpd/ncaf186","url":null,"abstract":"Radiochromic films are a reliable tool for quantifying ultraviolet exposure dose. When used without modification, these films enable a simple, low-cost measurement of accumulated dose over time which is amenable to personal exposure monitoring. This study presents two methods to expand the utility of these films for dosimetry applications. One approach utilized an ultraviolet radiation attenuator to effectively extend the usable dose range of radiochromic films. The attenuators have the added advantage of obscuring the film from view so the color change of the film due to increasing exposure dose is not visible. The practical use of these films with attenuators over prolonged exposure periods is highlighted as a case study in this manuscript. A second modification is the addition of a structure to limit the dose received by the film to an 80° field of view. Limiting the field of view of the film dosemeter provides for an estimate of the dose received by the eyes, accounting for protection provided by the ocular cavity, and the use of a dosemeter with a restricted field of view is included in recommendations for commissioning of ultraviolet lighting installations. Radiochromic films, when used in conjunction with these tools, offer an effective solution for extended dose ranges and eye-specific ultraviolet dose measurement in indoor spaces utilizing germicidal ultraviolet technologies.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"555-561"},"PeriodicalIF":0.7,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145952881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of uranium concentration, DNA fragmentation, and malondialdehyde concentration in the blood of Jisr-Diyala residents/Iraq. 伊拉克Jisr-Diyala居民血液中铀浓度、DNA片段和丙二醛浓度的评估。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncag004

Rasha S Ahmed, Haidar A Shamran, Ibtisam H Hammadi

{"title":"Evaluation of uranium concentration, DNA fragmentation, and malondialdehyde concentration in the blood of Jisr-Diyala residents/Iraq.","authors":"Rasha S Ahmed, Haidar A Shamran, Ibtisam H Hammadi","doi":"10.1093/rpd/ncag004","DOIUrl":"10.1093/rpd/ncag004","url":null,"abstract":"This study aims to evaluate the uranium concentration as an indicator of internal exposure to assess its potential biological effects, including DNA fragmentation and oxidative stress. Blood samples were collected from 80 individuals (40 residents and 40 from the control group) in Jisr Diyala district, Iraq, for uranium measurements. DNA fragmentation and malondialdehyde (MDA) concentration were estimated using the comet assay and MDA assay, respectively. The uranium concentration in the blood was significantly higher (605.90 ng l-1) in the residents compared to that in the control group (367.04 ng l-1). DNA fragmentation showed a 1.8-fold longer DNA tail, 2.4-fold larger tail area, 2-fold higher %DNA in the tail, and 3.3-fold higher tail moment in the resident group than in the control group. The mean MDA concentration was higher in the resident group (1.250) than in the control group (0.698). A positive correlation was observed between uranium concentration, DNA tail length, DNA tail moment, and MDA concentration. Increased uranium levels underline the importance of studying the associated health risks and biological effects.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"585-594"},"PeriodicalIF":0.7,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occupational and ambient radiation dose monitoring in a nuclear medicine department. 核医学科职业与环境辐射剂量监测。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncaf196

Mohaddeseh Heydarinia, Sedigheh Sina, Mohammad Hossein Sadeghi, Mahboobeh Sheikhi, Fatemeh Norouz Alizadeh

引用次数: 0

State-of-the-art 32 cm field-of-view digital PET/CT system: preliminary study for protocols optimization and DRLs update. 最先进的32厘米视场数字PET/CT系统：方案优化和drl更新的初步研究。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-05-02 DOI: 10.1093/rpd/ncag003

Christian Paolo Luca Fulcheri, Ottavia Sguazzini, Veronica D'Ignoti Parenti, Maura Scarlattei, Giorgio Baldari, Veronica Cervati, Tiziano Graziani, Livia Ruffini, Caterina Ghetti

{"title":"State-of-the-art 32 cm field-of-view digital PET/CT system: preliminary study for protocols optimization and DRLs update.","authors":"Christian Paolo Luca Fulcheri, Ottavia Sguazzini, Veronica D'Ignoti Parenti, Maura Scarlattei, Giorgio Baldari, Veronica Cervati, Tiziano Graziani, Livia Ruffini, Caterina Ghetti","doi":"10.1093/rpd/ncag003","DOIUrl":"10.1093/rpd/ncag003","url":null,"abstract":"The aim of this study was to assess the impact of a state-of-the-art 32 cm axial field-of-view GE Omni Legend PET/CT system on administered activity and image quality, and to update Diagnostic Reference Levels (DRLs). System performance was evaluated using NEMA NU 2-2018 measurements and EARL2 accreditation tests. A comparison with the previous 5-ring GE Discovery IQ scanner was performed to analyze the administered activity, scan duration and image quality with and without Artificial Intelligence driven reconstruction. A retrospective analysis of standard-sized adult examinations was conducted to derive updated DRLs values. Omni Legend demonstrated improved sensitivity and Noise Equivalent Count Rate, enabling up to 60% reduction in injected activity while maintaining or improving image quality. Deep learning reconstruction enhanced image quality, particularly at lower administered activities. The DRLs were lower than the national and international reference levels, supporting dose optimization in clinical practice.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"595-608"},"PeriodicalIF":0.7,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From Hp(10) to Hp: impact of implementing ICRU/ICRP report 95 personal dose quantity on CaSO4:Dy-based TLD dosemeters - a Monte Carlo study. 从Hp（10）到Hp：实施ICRU/ICRP报告95个人剂量量对CaSO4: dy TLD剂量计的影响-蒙特卡洛研究。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-30 DOI: 10.1093/rpd/ncag042

Rohit Yadav, Madhumita Bhattacharya, Ashok K Bakshi, Balvinder K Sapra

{"title":"From Hp(10) to Hp: impact of implementing ICRU/ICRP report 95 personal dose quantity on CaSO4:Dy-based TLD dosemeters - a Monte Carlo study.","authors":"Rohit Yadav, Madhumita Bhattacharya, Ashok K Bakshi, Balvinder K Sapra","doi":"10.1093/rpd/ncag042","DOIUrl":"https://doi.org/10.1093/rpd/ncag042","url":null,"abstract":"The International Commission on Radiation Units and Measurements (ICRU), in collaboration with the International Commission on Radiological Protection (ICRP), has introduced new operational quantities in ICRU Report 95. Among these, the personal dose Hp addresses the significant limitations of the currently used Hp (10), which can overestimate the effective dose by up to a factor of 5.5 at photon energies below 70 keV. These changes necessitate a re-estimation of dosemeter response to evaluate potential modifications in dose algorithms and detector design. In this study, the performance of CaSO4:Dy thermoluminescent dosemeter (TLD) badges was investigated for the new operational quantity Hp and compared with the existing Hp (10). The badge response was simulated over photon energy range 12.3-1250 keV using the Monte Carlo Simulation code FLUKA and benchmarked against experimental validation. To correct for energy-dependent overestimation at lower photon energies, a new dose evaluation algorithm for Hp was developed based on disc dose ratio (R12). The disc dose ratio (R12) refers to the ratio of absorbed doses measured in CaSO₄:Dy TL discs D1 and D2 positioned under different filtration conditions within the badge and serves as an energy-sensitive parameter for correcting the over-response of the dosemeter in terms of Hp. The proposed algorithm demonstrated strong compliance with IEC 62387:2020 performance criteria (acceptance range 0.71-1.67), with 95% of estimated Hp values lying within 0.9-1.3 of the delivered dose. These results confirm that CaSO4:Dy TLD badges, when combined with the improved algorithm, are fully compatible with the new operational quantities recommended in ICRU Report 95, ensuring reliable application in personnel dosimetry.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of analytical factors on the determination of gross alpha/beta activity in drinking water using liquid scintillation counting. 分析因素对液体闪烁计数法测定饮用水中总活性的影响。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-30 DOI: 10.1093/rpd/ncag041

Zhimo Chen, Liangliang Yin, Cen Shi, Yuhan Xie, Yuxin Qian, Yanqin Ji

引用次数: 0